One of the most architecturally stunning subway stations in New York City is most likely a place you’ve never stepped foot in.

While Old City Hall station has been shuttered for more than 70 years, the allure of the abandoned site remains. Several times a year, transit enthusiasts can walk the curved platform, appreciate the elegant chandeliers and vaulted tile ceilings, and learn the secrets of the station’s past.

While you wait for the next available New York Transit Museum tour, you can learn more about the station known as the “jewel in the crown” below.